here is the MSDN definition of qsort() parameter list
void qsort(
   void *base,
   size_t num,
   size_t width,
   int (__cdecl *compare )(const void *, const void *)
);

what is the meaning of the last parameter

Since you have a computer and are on-line, I would suggest that consider using a search engine. I think that it would be faster for you than posting a request for help and waiting for a helpful response.

For your question:

I used google to search for "qsort".

The first hit was

http://www.cplusplus.com/ref/cstdlib/qsort.html


There is an example showing how to make a function to use with qsort() to sort an array of ints.

I don't mind trying to answer specific questions about code that you have written that doesn't compile or doesn't give the results that you expect.


Good Luck!

Dave